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Subject[PATCH 2/4] kbuild: deb-pkg: create source package without cleaning
Date
If you run 'make deb-pkg', all objects are lost due to 'make clean',
which makes the incremental builds impossible.

Instead of cleaning, pass the exclude list to tar's --exclude-from
option.

Previously, *.diff.gz contained some check-in files such as
.clang-format, .cocciconfig.

With this commit, *.diff.gz will only contain the .config and debian/.
The other source files will go into the tarball.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

scripts/Makefile.package | 27 ++++++++++++++++++++++-----
scripts/package/mkdebian | 27 +++++++++++++++++++++++++++
2 files changed, 49 insertions(+), 5 deletions(-)

diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index dfbf40454a99..cb135c99a273 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -50,6 +50,21 @@ fi ; \
tar -I $(KGZIP) -c $(RCS_TAR_IGNORE) -f $(2).tar.gz \
--transform 's:^:$(2)/:S' $(TAR_CONTENT) $(3)

+# Source Tarball
+# ---------------------------------------------------------------------------
+
+quiet_cmd_exclude_list = GEN $@
+ cmd_exclude_list = $(srctree)/scripts/gen-exclude.py --prefix=./ --rootdir=$(srctree) > $@; echo "./$@" >> $@
+
+.exclude-list: FORCE
+ $(call cmd,exclude_list)
+
+quiet_cmd_tar = TAR $@
+ cmd_tar = tar -I $(KGZIP) -c -f $@ -C $(srctree) --exclude-from=$< --exclude=./$@ --transform 's:^\.:linux:S' .
+
+%.tar.gz: .exclude-list
+ $(call cmd,tar)
+
# rpm-pkg
# ---------------------------------------------------------------------------
PHONY += rpm-pkg
@@ -81,12 +96,11 @@ binrpm-pkg:

PHONY += deb-pkg
deb-pkg:
- $(MAKE) clean
$(CONFIG_SHELL) $(srctree)/scripts/package/mkdebian
- $(call cmd,src_tar,$(KDEB_SOURCENAME))
- origversion=$$(dpkg-parsechangelog -SVersion |sed 's/-[^-]*$$//');\
- mv $(KDEB_SOURCENAME).tar.gz ../$(KDEB_SOURCENAME)_$${origversion}.orig.tar.gz
- +dpkg-buildpackage -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch) $(DPKG_FLAGS) --source-option=-sP -i.git -us -uc
+ $(Q)origversion=$$(dpkg-parsechangelog -SVersion |sed 's/-[^-]*$$//');\
+ $(MAKE) -f $(srctree)/scripts/Makefile.package ../$(KDEB_SOURCENAME)_$${origversion}.orig.tar.gz
+ +dpkg-buildpackage -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch) $(DPKG_FLAGS) \
+ --build=source,binary --source-option=-sP -nc -us -uc

PHONY += bindeb-pkg
bindeb-pkg:
@@ -174,4 +188,7 @@ help:
@echo ' perf-tarxz-src-pkg - Build $(perf-tar).tar.xz source tarball'
@echo ' perf-tarzst-src-pkg - Build $(perf-tar).tar.zst source tarball'

+PHONY += FORCE
+FORCE:
+
.PHONY: $(PHONY)
diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index c3bbef7a6754..12c057ffbe6e 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -84,6 +84,8 @@ set_debarch() {
fi
}

+rm -rf debian
+
# Some variables and settings used throughout the script
version=$KERNELRELEASE
if [ -n "$KDEB_PKGVERSION" ]; then
@@ -135,6 +137,31 @@ fi
mkdir -p debian/source/
echo "1.0" > debian/source/format

+cat<<'EOF' > debian/source/local-options
+#
+# Ugly: ignore anything except .config or debian/
+# (is there a cleaner way to do this?)
+#
+diff-ignore
+
+extend-diff-ignore = ^[^.d]
+
+extend-diff-ignore = ^\.[^c]
+extend-diff-ignore = ^\.c($|[^o])
+extend-diff-ignore = ^\.co($|[^n])
+extend-diff-ignore = ^\.con($|[^f])
+extend-diff-ignore = ^\.conf($|[^i])
+extend-diff-ignore = ^\.confi($|[^g])
+extend-diff-ignore = ^\.config.
+
+extend-diff-ignore = ^d($|[^e])
+extend-diff-ignore = ^de($|[^b])
+extend-diff-ignore = ^deb($|[^i])
+extend-diff-ignore = ^debi($|[^a])
+extend-diff-ignore = ^debia($|[^n])
+extend-diff-ignore = ^debian[^/]
+EOF
+
echo $debarch > debian/arch
extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev:native)"
extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
--
2.34.1
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